But this stuff can be easily find on papers from that period 🙂
My moto is better nothing than false data. Because when you have data that is full of errors or false, you also taking error in start of your data.

Mistakes HAŠK – SK Kladno…
JOSIP Žmara not Vladimir
ZENO “IVICA” Golac not Zlatko (Zlatko was his younger brother who played for Dinamo Zagreb after WW II)
NIKOLA Duković it is mising
full name of Boro Konstantinović is BORIVOJ
etc
etc